Sewer-trap.



No. 7|o,2o9. Y Patented Sept. 3o, |902.

J. PRATT.

SEWER TRAP.

(Applcatin led May 12,1902.) (nomaden) UNITED STATEs PATENT @ErreaJOSEPH PRATT, OF MCKEESPORT, PENlQSYLVANIA.

s EW E R-T RAP.

SPECIFICATION formingpart of Letters Patent No. 710,209, dated September80, 1 902. Application filed May 12,1902. Serial No. 106,903. (Nomodel.)

To (LM whom, it muy concern:

lle it known that l, JOSEPH PRATT, a citizen of the United States ofAmerica, residing at HcKeespoi-t, in the county of Allegheny and Stateof Pennsylvania, have invented certain new and useful Improvements inSewer Flushes and Traps, of which the following is a specification,reference being had therein' convenientpoint, 4either on one or moresides to the accompanying drawings.

This invention relates Yto certain Anew and useful improvements insewer-traps, and has for its object to provide a combined sewer trap andHush.

The invention aims to construct a trap with means to receive the wastewater and sediment from the building connection and deliver the same atintervals to the sewer proper in a manner which will permit of theushing after each delivery, so as to insure all dirt, sediment, or thelike which may be delivered to the sewer proper being effectuallycarried off through the same and prevented from clogging.

Briefly described, my invention com prises a casing which may be made ofbrick, ma-

sonry, slate, vitrified material, or other suit-v able material andwhich is in communication with the house connection. A tilting trap isarranged in this casing and is adapted to receive the discharge from thehouseV connection, retaining the same a determined time, and thendelivering it to the sewer proper, simultaneously iiushing, so as toeiectually carry any dirt or sediment through the sewer.

In the accompanying drawings I have shown a practical embodiment of myinvention, and;

in describing the invention in detail reference is had to the drawingsforming a part of this specification, and wherein like nu merals ofreference indicate like parts throughout the several views, in which-YFigure 1 is a central longitudinal sectional View ot' my improved trapand flush, showing the same in position. Fig. 2 is a transverse verticalsectional View taken on the line 2 2 of Fig. 1. Fig. 3 is a transversevertical sectional view taken A011 the line 3 3 of Fig. 1. Fig. 4 is ahorizontal sectionalview taken on the line 4 4 of Fig. 1.

My improved trap and ush embodies a casing or box 1, which may be madeof any suitable material and as in practice is located belowthe street 2and pavement 3, and has an extension 4 ordinarilyJitted against theinner side of the curb 5. `This extension is closed at the top by acover or trap-door 6, which is ordinarily iiush with the pavement 3 andtop of the curb 5. The house connection 7 discharges into the extension4 at a of the saine, as may be required, though in the presentillustration l have shown a single house connection. The box or casing 1has a suitable base S, which is provided with a gutter 9 and an inclineddischargechute 10, whichis in communication, through the opening 11 inone of the side walls,with the sewer proper. (Not shown.) The side wallscarry 'bem-ings 12, in which is journaled, by means of short shafts ortrunnions 14, the trap 15, which is adapted to normally assume theposition shown in full lines in Fig. 1 of the drawings. This trap 15 issubstantially scoopshaped in form, having a back wall 16 and a shortoverlying top wall 17, to which is secured,'by means of hinges 1S, thedoor 19, which is provided throughout its length with a series ofopenings 2O for the purpose as will presently appear. This trap 15 whenin position as shown in full lines in Fig. 1 rests upon the stop orbuffer 21, and when tilted to the position shown in dotted lines in Fig.1, so as to discharge its contents, it engages a like stop or buffer 22,these stops or buers 21 22 being mounted in the upper face of the baseS. The inclined partition-wall 23 is arranged in the box or casing 1 andis cut away at its lower edge, and in this cut-away portion is arrangeda door 24,v which is secured to the partition 23 by hinges 25, this doorlying normally just above the gutter 9. To the opposite side wall of theextension 4 I preferably secure detlecting-plates 26, which areinclined, so as to cause the material discharged through the pipe '7into the box or casing to be carried into the trap 15 and prevent itfrom falling down the side walls of the box or casing 1. I may also tapa water-pipe 27 into the extension 4 for feedinga continuous supply ofwater to the trap or for tlushing the same at any time desired.

In operation the water, with any ldirt or IOO sediment that may betherein, is discharged through the house connection into the box orcasing l, where it is received in the trap 15, which holds the sameuntil such time as the load in said trap is of sufficient weight tocause the same to tilt in the manner shown in dotted lines in Fig. 1 ofthe drawings, thus discharging the contents into the gutter 9 of the boxor casing. As this gutter everiows the door 24 will be raised and thewaste discharged into the inclined chute 10, where it is carried offinto the sewer. Previous to the trap 15 being tilted the Water which wascontained in said trap would lie naturally in lthe lowest part thereof,or, in other words, in the rear of the trap-door 19, which door preventsthe greater part of the sediment or waste from passing into the chamberthus provided for the Water, so that thewater will act as a tlush forcarrying out any dirt or sediment in the trap when the latter is tiltedand washing the same out of the trap into the gutter 9. If the dirt andsediment as accumulated back of the door 19 are not sufcient to forcethis door out of the way when the trap is tilted, this dirt or sedimentwill be washed out through openings 20, the door 19 serving to preventthe too-free escape of the water contained in the back of the scoop-trapwhen the same is tilted. The dirt or sediment lying in the gutter 9 inexcess of what was discharged during one flushing may be forcedoutwardly on the next iushing operation of the trap,l

the door 24 serving to prevent the dirt or sediment from being forcedout in the discharge-chute and sewer in such quantities that there wouldnot be sufficient Water to carry the same away. Where a continuoussupply of water is furnished through thewater-pipe 27, the trap 15 willoperate automatically to flush the sewer each time that the load isreceived within said trap, as will be apparent, and upon dischargingeach load Will return to position shown in full lines until such time asit is again lled, when another flushing operation will take place.

It will be noted that various changes may be made in the details ofconstruction wit-hout departing from the general spirit of my invention.

Having fully described my invention, what I claim as new, and desi reto'secure by Letters Patent, is-

1. In a sewer trap and flush, the combination with a box or casing incommunication with the hous'e connection, a tilting trap mounted in saidbox or casing, a hinged door carried by said trap, and means forlimiting the tilting movement of the trap, substantially as described.

2. In a sewer trap and flush, a box or casing having the base providedwith a gutter, and with a discharge-chute in communication with thesewer, a tilting trap mounted in the box or casing, a hinged doorcarried by said trap, a partition in the box or casing, and a hingeddoor carried by said partition, substantially as described.

3. In a sewer trap and iush, a box or casing in communication with thehouse connection, a tilting trap mounted in said box or casing',delector-plates carried by the box or casing for discharging thematerial into the trap, a hinged door carried by said trap, and meansfor limiting the tilting movement of the trap, substantially asdescribed.

4. In a sewer trap and flush, a box or casing in communication with thehouse connection,awatersupply pipecommunicating with the box or easing,a tilting trap mounted in the box or casing, a partition in said box orcasing, and a hinged door carried by said partition, substantially asdescribed.

5. In a sewer trap, a box or casing having the base provided with agutter and an inclined discharge-chute,,combined with a-tilting trapmounted in the box or casing, a par-- tition in the box or casing, and ahinged door carried by said partition lying above the gutter,substantially as described.

In testimony whereof I afx my signature in the presence of twowitnesses.

` JOSEPH PRATT.

Witnesses:

E. E. POTTER, A. M. WILSON.

